[SDL] drawing of an anti aliased circular arc

[Andreas Schiffler]

You might be able to adapt the code from SDL_gfx ... there is an 
aaellipse() routine that could be used possibly with some 
draw-supression in the loop based on pre-calculated counters to just 
draw an arc. Or, if you are not concerned about speed too much, recode 
it using a float based iterator and start/end angles.

Source is here: http://www.ferzkopp.net/joomla/content/view/19/14/

(PS: If you ever get some aaArc code working, it would be a great 
addition to SDL_gfx).

Tim Schürmann wrote:
> Hi!
>
> Armin Steinhoff schrieb:
>
>   
>> I'm looking for an algorithm for drawing an anti aliased circular arc.
>>
>> Are there any pointers or sources of it ?
>>     
>
> If you are from germany, have a look at the book "Computergrafik"
> (Bender/Brill, Hanser Verlag). AFAIR no source code, but a good description
> of an anti-aliasing algorithm.
>
> Bye,
>
> Tim
>
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